Shuttle



Jan. 12 1926.

A. F. COLLINS Er'AL SHUTTLE Filed Sept. 10, 1923 INK/[NTOAS 7775/5AWORA/[y Patented J an. 12, 1926.

UNITED STATES PATENT OFFICE.

ALFRED F. COLLINS, 0F PORTLAND, AND CHARLES MOGINLEY, 0F OSWEGO, OREGON.

SHUTTLE.

Application filed September 10, 1928. Serial No. 661,756.

To all whom it may concern:

Be it hereby known that we, ALFRED F. CoLLrNs and CHARLES MOGINLEY,citizens of the United States, and residents, respectively, of Portland,county of Multnomah, and State of Oregon, and Oswego, county ofOlackamas, State of Oregon, have invented a new and useful Shuttle, ofwhich the following is a specification.

This invention relates more particularly to roll edge mattress machines.

The objects of our invention are to pro vide an exceedingly simple andefiicient means for keeping the operator of a roll edge mattress machineinformed as to the amount of thread remaining on the bobbin within theshuttle.

A further object is to eliminate thread waste, usually caused by theoperator not discovering that a bobbin is empty until he has sewed pastthe end of the thread, which forces him to back up his machine and ripenough of his sewing to give him an end which can be tied, as well asthe reduction of time lost in this operation.

Another object is to improve the appearance of the mattress byeliminating the over-lapping of stitches and also perforations caused bythe machine while not sewing and where stitches have been ripped out.

We attain these results in the manner set forth .in the followingspecification and il-, lustrated in the accompanying drawing, in whichFigure 1 is a rear elevation of the shuttle-carrying portion of a rolledge mattress machine, and Figure 2 is a plan of Figure 1, showing theposition of the operators eye in relation to the machine.

Similar numbers refer to the same parts throughout the views.

Referring in detail to the drawing, we have illustrated only theshuttle-holding portion of a roll edge mattress machine which has acurved shuttle race 10 con sisting of the stationary portion 11 on thebase 12 and the removable portion 13 which islocked in place by the pin14 in the standard 15, which pin is withdrawn after pulling the knob 16outwardly. A needle race 17 is provided for the needle 18 whose o---eraing par s are not sh wn,- Th bra ket ed a mirror 25 on a pedestal 26by means o of the screws 27. The location of the operators eye in anapproximate Working position is indicated to illustrate the advantage ofplacing the mirror 25 behind the shuttle 20. The movement of the shuttle20 in this class of sewing machines is relatively slow and the operatorneeds only to look into the mirror 25 to find out how much threadremains on the bobbin.

It was formerly the practice when bobbins were rewound by the operatorhimself, to mark the first thread wound on the bobbin, which would bethe last to come 01? from same, with a colored chalk to assist him instopping his machine in time to have a tying end exposed to view. Thepractice now is to wind this thread upon cardboard spools or tubes,which are furnished to the operator, and he merely inserts the removablemetal ends which bear on the central pivot within the shuttle.

While we have illustrated our device in connection with particular formof roll edge mattress machines, it will be understood that its use isapplicable to any machine employing a shuttle from which thread ls takenon the side toward the operator.

It will also be understood that the exact shape and location of the hole22 is unimportant, and in some machines the mirror itself may often bedispensed with when the opening can be placed on the side toward theoperator.

What we claim as new is:

1. The combination of a longitudinal shuttle member having an aperturein its rearside with a longitudinal bobbin member in said shuttle havingits open side visible through said aperture and a stationary .mirrorbehind said shuttle arranged to refleet the image ofsaid shuttle to theeye of the pera r in a m nner to d c ose the amount of thread on saidbobbin Within the shuttle While in motion.

2. A shuttle for mattress sewing machines having an opening cut in itsrear Wall; a bobbin in said shuttle having its open side facing saidrear Wall; and having a mirror mounted behind said shuttle arranged toreflect the image of said shuttle to the eye of the operator in a mannerto disclose the amount of thread on said bob- 10 bin Within the shuttleWhile in motion.

ALFRED F. COLLINS. CHARLES MOGINLEY.

